minetest/src/client/meshgen/collector.h

71 lines
2.3 KiB
C++

/*
Minetest
Copyright (C) 2018 numzero, Lobachevskiy Vitaliy <numzer0@yandex.ru>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include <array>
#include <vector>
#include "irrlichttypes.h"
#include "irr_v3d.h"
#include <S3DVertex.h>
#include "client/tile.h"
struct PreMeshBuffer
{
TileLayer layer;
std::vector<u16> indices;
std::vector<video::S3DVertex> vertices;
PreMeshBuffer() = default;
explicit PreMeshBuffer(const TileLayer &layer) : layer(layer) {}
};
struct MeshCollector
{
std::array<std::vector<PreMeshBuffer>, MAX_TILE_LAYERS> prebuffers;
// bounding sphere radius and center
f32 m_bounding_radius_sq = 0.0f;
v3f m_center_pos;
v3f offset;
// center_pos: pos to use for bounding-sphere, in BS-space
// offset: offset added to vertices
MeshCollector(const v3f center_pos, v3f offset = v3f()) : m_center_pos(center_pos), offset(offset) {}
void append(const TileSpec &material,
const video::S3DVertex *vertices, u32 numVertices,
const u16 *indices, u32 numIndices);
void append(const TileSpec &material,
const video::S3DVertex *vertices, u32 numVertices,
const u16 *indices, u32 numIndices,
v3f pos, video::SColor c, u8 light_source);
private:
void append(const TileLayer &material,
const video::S3DVertex *vertices, u32 numVertices,
const u16 *indices, u32 numIndices,
u8 layernum, bool use_scale = false);
void append(const TileLayer &material,
const video::S3DVertex *vertices, u32 numVertices,
const u16 *indices, u32 numIndices,
v3f pos, video::SColor c, u8 light_source,
u8 layernum, bool use_scale = false);
PreMeshBuffer &findBuffer(const TileLayer &layer, u8 layernum, u32 numVertices);
};